20738915

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{911}}^1$

素因数の和:1102

約数の個数: 16

約数和(自身を含む): 25937280

約数和(自身を除く): 5198365

約数列:

[1, 5, 29, 145, 157, 785, 911, 4553, 4555, 22765, 26419, 132095, 143027, 715135, 4147783, 20738915]

約数ペア:

[(1, 20738915), (5, 4147783), (29, 715135), (145, 143027), (157, 132095), (785, 26419), (911, 22765), (4553, 4555)]